TMCM-035 Manual (V2.09 / February 27
th
, 2009)
9/18
Copyright © 2007-2009, TRINAMIC Motion Control GmbH & Co. KG
The SPI interface is mainly to be used to connect the TMCM-035 module to a TMCM-301 module. This
way, up to three TMCM-035 modules can be connected to one TMCM-301 module. The connection for
one module is shown in Table 4.2.
TMCM-035 pin number
TMCM-301 pin number
Signal name (TMCM-035)
1, 3
1, 3
+5V
2, 4, 6, 8, 10
2, 4, 6, 8, 10
GND
11
--
Enable, connect to GND
12
30
CLK
13
20
CSN
14
28
SDO
16
26
SDI
Table 4.2: Connecting a TMCM-035 to a TMCM-301
For operation with microstep resolution of 32 or 64 steps per fullstep refer to 4.6.2 Increasing
Microstep resolution with SPI interface
In SPI mode the LED on the board does not have any function and can be ignored.
4.3.2
Analog
The analog interface is mainly to be used to connect the TMCM-035 to a TMC453 chip or to a TMCM-
100 module (that contains a TMCM453 stepper motor controller chip).
The following pins are to be used in analogue mode:
Signal name Pin number Connection
SPE
19
Connect to GND (to enable analog interface unit)
SDEN
22
Connect to GND (to disable Step / Direction interface unit).
Enable
11
Connect to GND to enable or set high to disable the motor driver.
INA
21
Analog input which determines the current of phase A (0..3V).
INB
23
Analogue input which determines the current of phase B (0..3V).
PHA
16
Digital input which determines the polarity of phase A.
PHB
13
Digital input which determines the polarity of phase B.
MDAN
25
Set low to use mixed decay or high to use slow decay on phase A.
MDBN
12
Set low to use mixed decay or high to use slow decay on phase B.
Table 4.3: Analog interface connections
Please see Figure 4.3 for an explanation of the INA/INB/PHA/PHB signals.
Here is how to connect the TMCM-035 module to a TMCM-100 module:
